/**
 * Copyright (c) 2016 DeepCortex GmbH <legal@eventql.io>
 * Authors:
 *   - Paul Asmuth <paul@eventql.io>
 *
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License ("the license") as
 * published by the Free Software Foundation, either version 3 of the License,
 * or any later version.
 *
 * In accordance with Section 7(e) of the license, the licensing of the Program
 * under the license does not imply a trademark license. Therefore any rights,
 * title and interest in our trademarks remain entirely with us.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the license for more details.
 *
 * You can be released from the requirements of the license by purchasing a
 * commercial license. Buying such a license is mandatory as soon as you develop
 * commercial activities involving this program without disclosing the source
 * code of your own applications
 */
#include "eventql/util/stats/statsrepository.h"

namespace stats {

StatsRepository* StatsRepository::get() {
  static StatsRepository singleton;
  return &singleton;
}

void StatsRepository::exportStat(
    String path,
    StatRef* stat_ref,
    ExportMode export_mode) {
  auto stat = stat_ref->getStat();
  stat->incRef();
  ScopedLock<std::mutex> lk(mutex_);
  stats_.emplace_back(path, stat.get(), export_mode);
}

void StatsRepository::forEachStat(
    Function<void (const ExportedStat& stat)> fn) const {
  ScopedLock<std::mutex> lk(mutex_);

  for (const auto& stat : stats_) {
    fn(stat);
  }
}

void exportStat(String path, StatRef* stat, ExportMode export_mode) {
  StatsRepository::get()->exportStat(path, stat, export_mode);
}

}
